The Calgary Board of Education has been hit by a second significant privacy breach this month after an employee laptop containing the report cards of more than 2,000 students was left in a car and stolen.

The theft happened Oct. 5 and was reported to police and the Alberta privacy commissioner.

The CBE said it held off from a broader public notification because it wanted to first pull files and student information to build a clear contact list of those affected.

On Tuesday, 225 principals were called to a northeast hotel, briefed on the situation, and many were given phone numbers to begin calling the parents of those students.